Although LM317 is an adjustable regulator, it is sometimes preferred for high-precision fixed voltage applications instead of the similar LM78xx devices because the LM317 is designed with superior output tolerances
There are such PCB surface finishes as electroless nickel immersion gold or ENIG, immersion silver, organic solderability protectants (OSP), and a special Pb-free brand of HASL mostly used in ASIA to do Pb-free assembly
Personally I like the Powermonkey portable charger since it can not only charge an iPod but most cell phones, PDAs, PSPs and rechargeable digital cameras
TV manufacturer Samsung recently announced that it will be including automatic conversion software - TriDef, developed by DDD - in all of its new 3DTV sets
I have a pcb for a robot and I have added some extra parts on it for some purpose. I am new to elctronics and I dont know how and where to ground. On the pcb a hole for ground is given and I connected all the grounding wires of different ICs to it. I dont know that from here, where to connect the ground wire and how